Method of constructing shipping cases



sept, 18, 192s. 1,684,125'

l P. F. BOEYE METHOD oF coNsTRUTING SHIPPING cAss led Nov. 8, 1926 2 Sheets-Sheet 1 I Il l I I 'l' r' l gwvwnkw l I I l 'iL/2 z Hl 7 MME g E Paullafye l Il n I 1 u Sept. 18, 1928. 1,684,725 4P. F. BOEYE METHOD OF CONSTRUCTI'NG SHIPPING CASES Filed Nov. 8. 1926 A 2 Sheets-Sheet 2 ,gn/vanto@ lha/Zloye naturally a Patented Sept. 18, 1928.

UNITED lSTATris PATENT oFFice.

PAUL F. BOEYELOF ST. PAUL, MINNESOTA, ASSIGNOR TO WALDOR PAPER PRODUCTS COMPANY, A CORPORATION OF MINNESOTA. Y

METHOD' OF CONSTRCTING' SHIPPING CASES.

Application. filedNovemberS, 1926. Serial No. 146,872.

This invention relatesto a method of foldm ing fiat blanksto form shipping eases of the t-ype `having a plurality of sides, adapted `to be securedA together at certain of. the corners by overlapping flaps.

Such shipping' cases are constructed from sheets of heavy fibre board or corrugated board which are creased to facilitate folding toV boxY shape. It has been found that the cases` can be constructed most economically by incorporating a plurality of separately cut blanks in each, but it will be evident that the folding oftheasevenal sides and holding' them in box shape until secured together is difficult, aivkard operation, when attemptedby a single operator. Thus, by the methods heretofore employed, the ex.- pense of' assemblying theblankshas been eX- cessive. Themethod of the present invention has proven particularly valuable when applied to cases of,y the type described and claimed in my Patent No. 1,607,050, dated November 16, 1926.- In such cases, ai main blank is provided, which forms the bottom, and at least two sides of the case and also flanges for securing-the ends of these sides to the other blanks or sides ofthe box. These flanges, which are located' at the ends of the case, must be folded so asto ovcrlie the exterior surface of both ends ofthe case.

It is my object to provide .a `method of folding and retaining the several sides and flanges in proper relat'on until they can be permanently secured together. Other objects will` appear and be more fully pointed out in the following.specification and claims.

Referring to the drawings, Figure 1 isa side elevation of astack of blanks, supported upon atable suitable for carrying out my invention, the table being `shown in central, vertical section; Fig. 2 is a perspective View of, one of the shipping cases in finished form; Fig.. 3 isa plan. vievv of the fiat blanks forming a case, secured. together,

and ready for folding; Fig. 4L. is a planfview of the table With a stack of blanks in place and showing oneof the blanks partially folded; Fig. 5 is a longitudinal section through one of the boxes with the cover flaps partially open and Fig. 6 is a vertical section through a portion of the table and showing a blank after the second folding-operation.

As best shown in Fig. 3, one type of shipformed by scoring,

ping. case tol which my improved method is applicable, is formed from three blanks. The mainblank is creased and slotted to form'the bottom'7, two side Walls vS, tvvo cover flaps 9 and fianges 10 and 15 along each longitudinal edge, adapted to lie flat upon end panels 11 j formed separately. Each` of the end panels-11 hasa cover flap 12 and a bottom flange 18, adapted-tobe secured to the bottom 7 of the boX.

In the manufacture of the shipping cases, after the main and end blanks have been `slottin'g and trimming, themain blank islaid flat-and the end blanks are placed upon the bottom panel/, so that the flangesloverlap said panel. NOW, by driving iv're stitches 111. the end blanks are secured to the main blank and the flat assemblyof blanks is shipped to thepacker, who erectsthe boxes by my improvedmethod as theyare needed.

. My improved method can be best carried out by the use of a table 16 having as the rear portion thereof tivo side Wings 177 separated by. a central opening 18.' These Wings 17 are arranged to support a stack 19 0f the blanks in substantially upright position. y A suitable Lsupport 20 for the blanks is pro -vided at the back of thetable and a stop 21 1s secured to the top of the table to prevent the blanks from sliding toward the front edge 24. The yopening-18 in the table is Wide enough to receive the projecting end walls 11, as shown. in Figs. 1 and 4t. `l/iithin the forward portion of the opening 18is Van 'inclmed member or cam 22,-adapted to engage the lower Walls 11 and to fold them as hereinafter described. Near the front edge of the table is an offset plate 23, upon Whieh the bottom Wall 11l is ysupported tol permit the passage of the lianges -10 beneath said wall.

Vhen the shipping case is to be constructed from an assembly of blanks, such as that shown in Fig. a stack of such blanks are supported upon the Wings 17 of the tablevwith one end `wall11' of each pro- ]ecting into thecentral opening'll and the blanks resting upon the edges of the flanges 10 and 10a. Then normally outer surfaces of the blanksare placed so as to face an operator stationed at the front edge 24 of the table 16. The successive folding operations upon each blank'A are illustrated in Figs.

wings 17 of the table. Thus, the flaps 10l and t at the top andbottom edges of a blank are simultaneously folded along their crease lines. .wards the operator so `that the endpanel 11 strikes the inclined member 22 and is folded to its posititon perpendicular to the bottom 7, thus bringing the blank tothe position shown in Fig.6. Simultaneously witlithe folding `of the lower side 11 upontlie table,

the upper side 11 may be folded' manually to extend parallel to the4 bottom panel 11. Now the free edges of the upper flanges 10 are raisedA so as to pass above the panel 11 and the side panels 8 are folded toward each other and away from the operator, simultaneously, to the position shown in Fig. 4. During this last mentioned folding operation, the end wall 11 upon the table is oft set upward by the plate Q3 so as to permit the free passage of the lower flanges '10 beneath the margins of said wall 11. By merely grasping the boxf at its upper'corners extending away from the operator, the side walls S are pressed inward upon the end panels 11 and Vthe anvil of a stitching machine may be inserted in the open 'top of the box which is' retained in'its position remote from the operator. Rows of stitches 25 and 211 at one end of the box may now be driven. Finally, the box is inverted and the anvil is inserted in the other end where Ythe corresponding stitches are'driven. New the box is complete and is ready" for filling.

My improved method insures proper positioiiing-of the several flanges,\preparatory to the permanent securing operation and has the added advantage ofy savingniucli time in Verecting the boxes. Further, by attaching the several blanks of-eacli case `together before shipping to the packer, I minimize the Vcost of shipping by making it possible to transport the boxes in the most compact lform and greatly facilitate their erection after they are received by the packer.

f It will be evident that means other than the table 16 may be employed to facilitate` the folding operation and it is even possible to carry out this invention entirely manually if a plurality of operators Vare available. Having described my invention what` I The blank A is now drawn toblanks along an edge of each and securing Vt-hein together while flat, subsequently folding said flanges inward simultaneously at the opposite edges of' said blank, then folding the end walls to final position,thenfoldl `ing the sidewalls inward to bring said flanges into overlapping relation with the end walls and finally securing said flanges 1 upon the margins of said end walls.

2. The methodv of constructing shipping cases .having `side and end walls formed from a plurality of blanks, one of Vsaid blanks having portions constituting the bottom, twoy'side walls and flanges along its opposite edges adapted to overlap tlie other blanks at the ends of the case, whichinethod consists `in first overlapping the #several blanks along an edge of each and securing I the blanks to ether lwhileiflat, subsequently folding said anges inward at theopposite edges of saidblanks, then` foldingan end wall inward to position perpendicular to the bottom, then folding the side walls inward to bring said flanges into overlapping relaf tion with the end walls and fnall securing said flanges upon the margins o lsaid `end walls. i

The method of constructing shipping Y cases having side 4and end 'walls' formed` from a plurality of blanks, one of said blanks having flanges along,its opposite edges adapted to overlap thefother blanks at the ends of thecase, which method con sists in first overlapping the several blanks along an edge of each and securing .the blanks together while flat, subsequentlyset'- ting up saidblanks uponan edge of each and folding said flanges away from'the op erator simultaneously at the opposite edges of said blanks, then folding theend panels away from the operator to final position, then folding the sdepanel'walls away from the operator to bring said flanges into 'overlapping relation with the end walls and finally securing said flanges upon the margins of'said end panels. g i Y In testimony whereof, I have hereunto signed my name to this specification.

PAUL ri Boeve.

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